Use inside circles diameters. You should have drill bits sized 6, 7, 12, 14, 16 mm. It's another side of the box cover that's why all buttons are mirrored. You can open the source file in diagrams.net ...

This project is to use an Arduino Uno R3 board to support rotary encoders in DIY button boxes. These boxes are popular in the racing 🚙, flight ️ 🚁, trucking 🚛, farming 🚜, train 🚉, and space 🚀 ...

[Ronnied] took the DIY road ... of the control buttons, each button only changing the resistance between the two wires. The button states could easily be read by using an Arduino’s analog ...

There’s another aspect that doesn’t get covered as often: How to charge electric vehicles- especially commercially produced EV’s rather than the DIY kind ... An Arduino Pro Mini provides ...